diff --git a/core/modules/node/node.api.php b/core/modules/node/node.api.php
index b438821..3dac85f 100644
--- a/core/modules/node/node.api.php
+++ b/core/modules/node/node.api.php
@@ -234,12 +234,12 @@ function hook_node_grants($account, $op) {
  * - 'grant_delete': If set to 1 a user that has been identified as a member
  *   of this gid within this realm can delete this node.
  * - 'langcode': Optional key. The language code of the grant version. This
- *   value is set automatically from the $node parameter during the database
- *   writing.
+ *   value is set automatically from the $node parameter during database
+ *   storage.
  *
  *
- * When an implementation is interested in a node but want to deny access to
- * everyone in Catalan language, it may return a "deny all" grant:
+ * When an implementation is interested in a node in Catalan language, but want
+ * to deny access to everyone, it may return a "deny all" grant:
  *
  * @code
  * $grants[] = array(
diff --git a/core/modules/node/node.module b/core/modules/node/node.module
index f271b68..68fcbfc 100644
--- a/core/modules/node/node.module
+++ b/core/modules/node/node.module
@@ -3404,12 +3404,12 @@ function node_access_acquire_grants(Node $node, $delete = TRUE) {
  *
  * @param Drupal\node\Node $node
  *   The $node being written to. All that is necessary is that it contains a
- *   nid. If it contains langcode - and grant doesn't contain it - this will
- *   written to databse, else an empty string.
+ *   nid.
  * @param $grants
  *   A list of grants to write. Each grant is an array that must contain the
  *   following keys: realm, gid, grant_view, grant_update, grant_delete and
- *   langcode is an optional key which set automatically from $node parameter.
+ *   langcode is an optional key which is set automatically from $node
+ *   parameter.
  *   The realm is specified by a particular module; the gid is as well, and
  *   is a module-defined id to define grant privileges. each grant_* field
  *   is a boolean value.
@@ -3440,7 +3440,7 @@ function _node_access_write_grants(Node $node, $grants, $realm = NULL, $delete =
       if ($grant['grant_view'] || $grant['grant_update'] || $grant['grant_delete']) {
         $grant['nid'] = $node->nid;
         if (!isset($grant['langcode'])) {
-          $grant['langcode'] = isset($node->langcode) ? $node->langcode : '';
+          $grant['langcode'] = $node->langcode;
         }
         $query->values($grant);
       }